EP2021066A1 - Anneaux de compression de septum - Google Patents
Anneaux de compression de septumInfo
- Publication number
- EP2021066A1 EP2021066A1 EP07757221A EP07757221A EP2021066A1 EP 2021066 A1 EP2021066 A1 EP 2021066A1 EP 07757221 A EP07757221 A EP 07757221A EP 07757221 A EP07757221 A EP 07757221A EP 2021066 A1 EP2021066 A1 EP 2021066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- septum
- compression element
- needle opening
- interior perimeter
- beads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0208—Subcutaneous access sites for injecting or removing fluids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M2039/0036—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use characterised by a septum having particular features, e.g. having venting channels or being made from antimicrobial or self-lubricating elastomer
- A61M2039/0072—Means for increasing tightness of the septum, e.g. compression rings, special materials, special constructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/04—Access sites having pierceable self-sealing members
Definitions
- vascular system Long term access to the vascular system is often required for the treatment of conditions requiring regular administration of therapeutic agents, nutrition, blood products and/or other fluids or the withdrawal of fluids therefrom.
- a catheter is typically inserted to form a path to the vascular system by advancing a distal end of the catheter into a blood vessel while a proximal end remains accessible.
- the proximal end of such a catheter may be connected to a port which may be subcutaneous to minimize interference with patient activities while reducing the probability of infection.
- a needle is often used to pierce the skin and penetrate a self-sealing septum of the port.
- repetitive punctures degrade the ability of the septum to reseal itself, eventually requiring replacement of the port. Extending this "stick life” or “puncture life” of the septum reduces the number of these replacement procedures consequently reducing the discomfort and cost associated with the procedures.
- the present invention is directed to an access port for a catheter, comprising a housing including a needle opening extending to a fluid chamber defined within the housing and a self sealing septum mounted within the needle opening and engaging an interior perimeter of the needle opening in combination with a compression element disposed between the septum and the housing directing a radially inward compressive force to the septum.
- Figure 1 is an exploded view showing an access port according to an embodiment fo the present invention
- Figure 2 is a cross sectional view of the access port shown in Fig. 1 .
- Figure 3 is a cross sectional view of another embodiment of the access port according to the invention.
- the present invention may be further understood with reference to the following description and to the appended drawings, wherein like elements are referred to with the same reference numerals.
- the present invention relates to devices for accessing the vascular system via a catheter and, more specifically, relates to an access port for the injection and/or withdrawal of fluids via a subcutaneous central venous access catheter.
- the present invention provides a method and system increasing the puncture life of the septum by applying a radially compressive force to the septum.
- septum compression rings are provided to generate the radial compression, while minimizing the resulting axial force that may be applied to the housing assembly and to joints and bonds of the port.
- the force may result from the septum compression rings providing an interference fit between the septum and a housing of the port.
- the septum compression rings may be formed, for example, by beads of additional septum material disposed around an outer diameter of the septum.
- an access port 100 which may, for example, be a subcutaneous venous access port connected to an implanted catheter via a connector 114.
- the port 100 comprises a housing 102 including a base 104 and an upper portion 106 which defines an internal fluid chamber 105 in fluid connection with an outlet/inlet 1 13 in the connector 1 14 for fluid connection to a catheter.
- the base 104 and upper portion 106 may be joined to one another by, for example, a friction fit, mechanical interlocks, by bonding or with an adhesive, among other options.
- the housing 102 may further comprise suture loops 124 or similar elements to secure the device to tissue.
- a needle opening 116 is provided on a side of the port 100 facing the underside of the skin so that a needle inserted through the skin can pass through the opening 116 into the chamber 105 to fluidly couple to the catheter and, consequently, to the vascular system.
- the port 100 comprises a septum 108 held in place between the base 102 and upper portion 106.
- a perimeter of the septum 108 may be held between opposing surfaces of the base 104 and upper portion 106.
- a compression ring element 110 is formed by one or more rings 130 disposed on the outer diameter of the septum 108.
- the compression ring element 110 is placed in radial interference with inner surfaces 126 of the upper portion 106 of the housing 102.
- the radial interference causes a substantially radial force A that compresses the membrane 112 of the septum 108.
- the force has a minimal axial component, so that only a small axial force is applied to the joints and bonds of the housing 102 during use.
- the size, shape and number of the individual rings or beads 130 forming the compression ring element 110 may be selected to tailor the forces applied to the housing 102 and the septum 108 to a desired level or to position the forces in a desired manner.
- the friction between the compression ring element 110 and the upper portion 106 may be reduced by reducing the surface area of the beads 130 contacting the surface 126 during assembly of the device, such as when the septum 108 is pushed in place.
- the compression ring element 110 comprises three rings or beads 130 having a substantially semi-circular cross section. As shown in Figs. 1 and 2, the beads 130 form peaks 120 in interference contact with the inner surface 126 of the housing 102 to generate the compressive force. Troughs 122 are formed between the peaks 120 reducing the surface area of the compressive ring element 110 in contact with the inner surface 126 of the upper portion 106. The reduced contact area lessens the friction that must be overcome when inserting the septum 108 in the housing 102, and also lessens the axial force applied to the assembly.
- a desired radial compression of the septum 108 may be achieved by selecting an appropriate number, shape and location of the rings or beads 130.
- the amount of compression and the distribution of the compressive force on the membrane 112 may be modified by selecting different parameters of the compression ring element 110.
- the geometry of the individual beads 130 may be changed to achieve a desired compressive force and friction with the housing.
- different geometries may be used such as triangular, trapezoidal or block shaped beads. These parameters may be varied as necessary to normalize the septum compression distribution across the volume of the septum.
- the compression force on the membrane 112 may be achieved without the addition of specific rings or beads.
- an oversized diameter of the septum perimeter creates the interference with the housing of the port and the resulting radial compression of the septum.
- the oversized septum perimeter may have, for example, a diameter slightly larger than an inner diameter of the opening in the housing component within which it is to reside.
- a port 200 includes a housing formed of an upper portion 202 defining an opening 207 within which a septum 210 resides. Beads 206 formed on an inner surface 204 of the upper portion 202 form radial compression elements causing interference with the perimeter of the septum 210 and the resulting radially compressive force applied thereto.
- the compression rings may be formed of the same material as that of which the septum is formed.
- the septum and/or the compression rings may be formed of silicone or any of a variety of materials of different durometer values.
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Orifice d'accès pour un cathéter comprenant un logement incluant une ouverture d'aiguille s'étendant dans une chambre de fluide définie dans le logement et un septum à scellement automatique monté dans l'ouverture d'aiguille et mettant en prise un périmètre intérieur de l'ouverture d'aiguille et un élément de compression disposé entre le septum et le logement dirigeant une force de compression radialement vers l'intérieur du septum.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/442,908 US20070282308A1 (en) | 2006-05-30 | 2006-05-30 | Septum compression rings |
PCT/US2007/062435 WO2007140029A1 (fr) | 2006-05-30 | 2007-02-20 | Anneaux de compression de septum |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2021066A1 true EP2021066A1 (fr) | 2009-02-11 |
Family
ID=38080868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07757221A Withdrawn EP2021066A1 (fr) | 2006-05-30 | 2007-02-20 | Anneaux de compression de septum |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070282308A1 (fr) |
EP (1) | EP2021066A1 (fr) |
JP (1) | JP2009538705A (fr) |
CA (1) | CA2652804A1 (fr) |
WO (1) | WO2007140029A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8310676B2 (en) | 2007-07-04 | 2012-11-13 | Kobe Steel, Ltd. | Method and apparatus for detecting small biomolecules |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8177762B2 (en) | 1998-12-07 | 2012-05-15 | C. R. Bard, Inc. | Septum including at least one identifiable feature, access ports including same, and related methods |
US9474888B2 (en) | 2005-03-04 | 2016-10-25 | C. R. Bard, Inc. | Implantable access port including a sandwiched radiopaque insert |
US8029482B2 (en) | 2005-03-04 | 2011-10-04 | C. R. Bard, Inc. | Systems and methods for radiographically identifying an access port |
US7947022B2 (en) | 2005-03-04 | 2011-05-24 | C. R. Bard, Inc. | Access port identification systems and methods |
US7785302B2 (en) | 2005-03-04 | 2010-08-31 | C. R. Bard, Inc. | Access port identification systems and methods |
EP3173121B8 (fr) | 2005-04-27 | 2021-03-24 | C.R. Bard Inc. | Appareils de perfuseur avec septum |
US10307581B2 (en) | 2005-04-27 | 2019-06-04 | C. R. Bard, Inc. | Reinforced septum for an implantable medical device |
EP1874393B1 (fr) | 2005-04-27 | 2017-09-06 | C.R.Bard, Inc. | Appareils de perfusion |
US9642986B2 (en) | 2006-11-08 | 2017-05-09 | C. R. Bard, Inc. | Resource information key for an insertable medical device |
US9265912B2 (en) | 2006-11-08 | 2016-02-23 | C. R. Bard, Inc. | Indicia informative of characteristics of insertable medical devices |
US9579496B2 (en) | 2007-11-07 | 2017-02-28 | C. R. Bard, Inc. | Radiopaque and septum-based indicators for a multi-lumen implantable port |
EP2346553B1 (fr) | 2008-10-31 | 2022-01-19 | C.R. Bard, Inc. | Systèmes et procédés d'identification d'un orifice d'accès |
US11890443B2 (en) | 2008-11-13 | 2024-02-06 | C. R. Bard, Inc. | Implantable medical devices including septum-based indicators |
US8932271B2 (en) | 2008-11-13 | 2015-01-13 | C. R. Bard, Inc. | Implantable medical devices including septum-based indicators |
EP2501294B1 (fr) | 2009-11-17 | 2018-08-15 | C.R. Bard, Inc. | Orifice d'accès surmoulé comprenant des caractéristiques d'ancrage et d'identification |
USD682416S1 (en) | 2010-12-30 | 2013-05-14 | C. R. Bard, Inc. | Implantable access port |
US9089395B2 (en) * | 2011-11-16 | 2015-07-28 | Appolo Endosurgery, Inc. | Pre-loaded septum for use with an access port |
JP6487339B2 (ja) | 2013-01-23 | 2019-03-20 | シー・アール・バード・インコーポレーテッドC R Bard Incorporated | 低プロファイルのアクセスポート |
US11420033B2 (en) | 2013-01-23 | 2022-08-23 | C. R. Bard, Inc. | Low-profile single and dual vascular access device |
US11464960B2 (en) | 2013-01-23 | 2022-10-11 | C. R. Bard, Inc. | Low-profile single and dual vascular access device |
DE102013104360A1 (de) * | 2013-04-29 | 2014-10-30 | Gerresheimer Regensburg Gmbh | Verfahren zum Einfügen zumindest eines Septums |
USD870264S1 (en) | 2017-09-06 | 2019-12-17 | C. R. Bard, Inc. | Implantable apheresis port |
USD908204S1 (en) * | 2017-10-16 | 2021-01-19 | Angiodynamics, Inc. | Implantable port |
US11583627B1 (en) | 2018-10-18 | 2023-02-21 | University Of South Florida | Implantable drug storage devices for drug delivery |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6131441U (ja) * | 1984-07-31 | 1986-02-25 | 株式会社 大協ゴム精工 | 樹脂ラミネ−ト医薬品用ゴム栓 |
US4781680A (en) * | 1987-03-02 | 1988-11-01 | Vir Engineering | Resealable injection site |
US5092849A (en) * | 1987-08-25 | 1992-03-03 | Shiley Infusaid, Inc. | Implantable device |
US5045060A (en) * | 1989-04-26 | 1991-09-03 | Therex Corp. | Implantable infusion device |
US5399168A (en) * | 1991-08-29 | 1995-03-21 | C. R. Bard, Inc. | Implantable plural fluid cavity port |
JP3482577B2 (ja) * | 1995-02-14 | 2003-12-22 | 日本シャーウッド株式会社 | 皮下埋込みポート |
US5954687A (en) * | 1995-04-28 | 1999-09-21 | Medtronic, Inc. | Burr hole ring with catheter for use as an injection port |
US5989216A (en) * | 1995-06-29 | 1999-11-23 | Sims Deltec, Inc. | Access portal and method |
US6228060B1 (en) * | 1998-09-02 | 2001-05-08 | Becton, Dickinson And Company | Blood seal having a spring-biased septum |
AU5738801A (en) * | 2000-04-26 | 2001-11-07 | Std Mfg Inc | Implantable hemodialysis access device |
US20050027234A1 (en) * | 2003-06-18 | 2005-02-03 | Waggoner Donna Jean | Surgical implant and method of accessing cerebrospinal fluid |
-
2006
- 2006-05-30 US US11/442,908 patent/US20070282308A1/en not_active Abandoned
-
2007
- 2007-02-20 EP EP07757221A patent/EP2021066A1/fr not_active Withdrawn
- 2007-02-20 JP JP2009513341A patent/JP2009538705A/ja active Pending
- 2007-02-20 WO PCT/US2007/062435 patent/WO2007140029A1/fr active Application Filing
- 2007-02-20 CA CA002652804A patent/CA2652804A1/fr not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2007140029A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8310676B2 (en) | 2007-07-04 | 2012-11-13 | Kobe Steel, Ltd. | Method and apparatus for detecting small biomolecules |
Also Published As
Publication number | Publication date |
---|---|
CA2652804A1 (fr) | 2007-12-06 |
WO2007140029A1 (fr) | 2007-12-06 |
JP2009538705A (ja) | 2009-11-12 |
US20070282308A1 (en) | 2007-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20081104 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17Q | First examination report despatched |
Effective date: 20110804 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20110901 |